[Music] that ONE song?

So, we all have that one song. It may be out of place with your usual music tastes, it may be something you've always listened to, it may be something you've only discovered recently, but we all have one: what is the one song that is your all-time favourite, your timeless classic, that song you just have to replay again and again?
For me it's without a doubt Bat out of hell, by Meatloaf.